E-PROFILE
LERWICK CL61 RayleighLiquid-cloud
0-20000-0-03005_C · UK · 60.139, -1.185 · 82 m
i

Data availability, cloud cover & calibration — per day; click a day to open that night in the daily panel

Status Pass Warning Error No data Cloud cover 0 4 8 octas Calibration calibrated no scene no night atmosphere retrieval instrument no data

Both retrievals on one axis — a systematic offset between them likely reflects electronic distortion of the signal, not the water-vapour correction. Click a legend entry to isolate one method; the tiles below follow the selection.

Rayleigh — calibration constant over time 0% success · 0/2 · median —

Liquid-cloud — calibration constant over time 0% success · 0/2 · median —

Rayleigh 0% success · 0/2 · median — · rel. unc —%

All Rayleigh calibrations (2) — click a flag for its meaning

DateFlagC_LUncertaintyExtraMessage
20261022 -1.0 Not a clear night — — — Not a clear night
20261021 0.0 No data — — — No profiles in nighttime window

Liquid-cloud 0% success · 0/2 · median — · rel. unc —%

All Liquid-cloud calibrations (2) — click a flag for its meaning

DateFlagC_LUncertaintyExtraMessage
20261022 -21.0 Cloud: laser energy too low — — 0 prof Cloud: laser energy too low
20261021 -21.0 Cloud: laser energy too low — — 0 prof Cloud: laser energy too low

Instrument monitoring — daily averages: laser power, window transmission, temperatures

Observation − Background (CAMS) — calibrated backscatter vs CAMS model over the selected window

Not produced for this stream — the OmB comparison is written by the operational run (--omb) and appears here once its CSV exists.

Cloudnet target classification — 2 days · aerosol / cloud / drizzle / ice / supercooled (ceiloclass, driven by CAMS T)

Classification — latest — Ctrl+← → step days, or click a day in the calendar

target classification curtain

Instrument sensitivity / detection limit — ICAO detection altitude & nighttime noise floor

Not produced for this stream — the sensitivity product is written by the operational run (--sens) and appears here once its CSV exists.